There is not one single governing body of all sports. There are a huge amount of sports and so there are many governing bodies of those sports. Some governing bodies oversee a range of different sports, but there is no governing body that oversees all sports in the world.
BCCI-Board of control for cricket in India with over 2 billion us dollars
Each sport has a different governing body and each governing body decides who can compete in that sport.
I'd go with golf - invented by Scots and the home of thew world governing body for the sport. In terms of what the most natives play - soccer.
TKD stand for Taekwondo and the governing body for the sport in the United States is 'USA Taekwondo' or 'USAT' for short. Martial arts is a popular activity in the United States.
Just about every country in the world does. FIFA, the world governing body of the sport, has over 200 countries as members.
The sport for stacking cups is called Sport Stacking. This sport is said to begin in 1990 on The Tonight Show. The earliest competition was held in 1998 in Oceanside, California. The governing body of the sport is known as the World Sport Stacking Association (WSSA).
FIVB is the governing body of Volleyball .fivb.org
The governing body for all football (or soccer) world wide - is FIFA - (Federal International Football Association).
There is a governing body for each sport that oversees the selection of the team for that sport. That body will organize a qualifying competition shortly before each Olympic games. The top finishers of that competition will then be vetted by the governing body to assess their readiness to compete in the Games. They have the final say over who's on the team.
To be honest it is called The National Doping Agency.